q35: change default NIC to e1000e

The e1000 NIC is getting old and is not a very good default for a
PCIe machine type.  Change it to e1000e, which should be supported
by a good number of guests.

In particular, drivers for 82574 were added first to Linux 2.6.27 (2008)
and Windows 2008 R2.  This does mean that Windows 2008 will not work
anymore with Q35 machine types and a default "-net nic -net xxx" network
configuration; it did work before because it does have an AHCI driver.
However, Windows 2008 has been declared out of main stream support
in 2015.  It will get out of extended support in 2020.  Windows 2008
R2 has the same end of support dates and, since the two are basically
Vista vs. Windows 7, R2 probably is more popular.

Reviewed-by: Jason Wang <jasowang@redhat.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

diff --git a/hw/i386/pc.c b/hw/i386/pc.c
index 35fcb6efdfb9ebeb515ca223883b721f08be6a3f..dc1f5356977179b6af40a8b77d39b415beeea03d 100644 (file)
--- a/hw/i386/pc.c
+++ b/hw/i386/pc.c
@@ -1619,18 +1619,19 @@ void pc_basic_device_init(ISABus *isa_bus, qemu_irq *gsi,
     }
 }
 
-void pc_nic_init(ISABus *isa_bus, PCIBus *pci_bus)
+void pc_nic_init(PCMachineClass *pcmc, ISABus *isa_bus, PCIBus *pci_bus)
 {
     int i;
 
     rom_set_order_override(FW_CFG_ORDER_OVERRIDE_NIC);
     for (i = 0; i < nb_nics; i++) {
         NICInfo *nd = &nd_table[i];
+        const char *model = nd->model ? nd->model : pcmc->default_nic_model;
 
-        if (!pci_bus || (nd->model && strcmp(nd->model, "ne2k_isa") == 0)) {
+        if (g_str_equal(model, "ne2k_isa")) {
             pc_init_ne2k_isa(isa_bus, nd);
         } else {
-            pci_nic_init_nofail(nd, pci_bus, "e1000", NULL);
+            pci_nic_init_nofail(nd, pci_bus, model, NULL);
         }
     }
     rom_reset_order_override();

diff --git a/hw/i386/pc_piix.c b/hw/i386/pc_piix.c
index 8658bcba63cb023cd09db7d67f8188eee9e8a6b3..0f1966d5474fdf3e0791f154591d506eb803d95d 100644 (file)
--- a/hw/i386/pc_piix.c
+++ b/hw/i386/pc_piix.c
@@ -240,7 +240,7 @@ static void pc_init1(MachineState *machine,
     pc_basic_device_init(isa_bus, pcms->gsi, &rtc_state, true,
                          (pcms->vmport != ON_OFF_AUTO_ON), pcms->pit, 0x4);
 
-    pc_nic_init(isa_bus, pci_bus);
+    pc_nic_init(pcmc, isa_bus, pci_bus);
 
     ide_drive_get(hd, ARRAY_SIZE(hd));
     if (pcmc->pci_enabled) {
@@ -417,6 +417,9 @@ static void pc_xen_hvm_init(MachineState *machine)
 
 static void pc_i440fx_machine_options(MachineClass *m)
 {
+    PCMachineClass *pcmc = PC_MACHINE_CLASS(m);
+    pcmc->default_nic_model = "e1000";
+
     m->family = "pc_piix";
     m->desc = "Standard PC (i440FX + PIIX, 1996)";
     m->default_machine_opts = "firmware=bios-256k.bin";
@@ -1114,6 +1117,7 @@ static void isapc_machine_options(MachineClass *m)
     pcmc->gigabyte_align = false;
     pcmc->smbios_legacy_mode = true;
     pcmc->has_reserved_memory = false;
+    pcmc->default_nic_model = "ne2k_isa";
     m->default_cpu_type = X86_CPU_TYPE_NAME("486");
 }
 

diff --git a/hw/i386/pc_q35.c b/hw/i386/pc_q35.c
index 0c0bc481379982325d86ff4b06900136c98a3958..9ae916327e759dc3403c780f001c43a4bf3aad84 100644 (file)
--- a/hw/i386/pc_q35.c
+++ b/hw/i386/pc_q35.c
@@ -272,7 +272,7 @@ static void pc_q35_init(MachineState *machine)
 
     /* the rest devices to which pci devfn is automatically assigned */
     pc_vga_init(isa_bus, host_bus);
-    pc_nic_init(isa_bus, host_bus);
+    pc_nic_init(pcmc, isa_bus, host_bus);
 
     if (pcms->acpi_nvdimm_state.is_enabled) {
         nvdimm_init_acpi_state(&pcms->acpi_nvdimm_state, system_io,
@@ -294,6 +294,9 @@ static void pc_q35_init(MachineState *machine)
 
 static void pc_q35_machine_options(MachineClass *m)
 {
+    PCMachineClass *pcmc = PC_MACHINE_CLASS(m);
+    pcmc->default_nic_model = "e1000e";
+
     m->family = "pc_q35";
     m->desc = "Standard PC (Q35 + ICH9, 2009)";
     m->units_per_default_bus = 1;
@@ -316,7 +319,10 @@ DEFINE_Q35_MACHINE(v2_12, "pc-q35-2.12", NULL,
 
 static void pc_q35_2_11_machine_options(MachineClass *m)
 {
+    PCMachineClass *pcmc = PC_MACHINE_CLASS(m);
+
     pc_q35_2_12_machine_options(m);
+    pcmc->default_nic_model = "e1000";
     m->alias = NULL;
     SET_MACHINE_COMPAT(m, PC_COMPAT_2_11);
 }

diff --git a/include/hw/i386/pc.h b/include/hw/i386/pc.h
index bb49165fe0a432dbf81511b1da5f97c7f78736e5..e81654eb7f4a93809a3fa71c976dfe49c617d008 100644 (file)
--- a/include/hw/i386/pc.h
+++ b/include/hw/i386/pc.h
@@ -114,6 +114,7 @@ struct PCMachineClass {
     /* Device configuration: */
     bool pci_enabled;
     bool kvmclock_enabled;
+    const char *default_nic_model;
 
     /* Compat options: */
 
@@ -248,7 +249,7 @@ void pc_init_ne2k_isa(ISABus *bus, NICInfo *nd);
 void pc_cmos_init(PCMachineState *pcms,
                   BusState *ide0, BusState *ide1,
                   ISADevice *s);
-void pc_nic_init(ISABus *isa_bus, PCIBus *pci_bus);
+void pc_nic_init(PCMachineClass *pcmc, ISABus *isa_bus, PCIBus *pci_bus);
 void pc_pci_device_init(PCIBus *pci_bus);
 
 typedef void (*cpu_set_smm_t)(int smm, void *arg);